Development of micro brushless DC motor model based on project design calculation using Ansys Maxwell RMxprt

Abstract

The theoretical basis of Ansys Maxwell RMxprt software and modeling methods are considered. A method of project design calculation of a micro brushless direct current (BLDC) motor using Ansys Maxwell RMxprt software was developed for a manufactured motor with known overall dimensions and some passport data (rated voltage, rated speed, rated current, rated torque, rated power) of arbitrary power for the purpose of further parameterization of the BLDC motor model from the MATLAB Simulink library. This will allow the development of new models of micro electric drives and the synthesis of efficient micro BLDC control systems, which can improve their performance, accuracy and speed of operation. The calculation was carried out on the example of a specific Sinotech model BY35BL30 BLDC micromotor using Ansys Maxwell RMxprt software in accordance with the developed micro BLDC project design calculation methodology. The results obtained by the project design calculation using Ansys Maxwell RMxprt software coincide with the known original passport data of the manufactured BLDC micromotor with a small error of up to 5%. A comparative analysis of the results allows us to conclude about their high degree of coincidence. The use of this approach provides all the necessary parameters for the parameterization of the BLDC motor model from the MATLAB Simulink library. The research of the micro BLDC model in the Ansys Maxwell RMxprt software were carried out based on the data obtained during the project design calculation. Thus, the proposed approach has confirmed its workability and the assumption that it can be used for further research on electric drives based on BLDC.